Tire widths

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Apr 4, 2024 | 10:38 AM

C746490

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Burning Brakes

Joined: Jul 2007

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From: Clearfield Utah

Tire widths

How wide of a tire can you run on stock wheels from a 2024 Z51 ?

Apr 4, 2024 | 01:08 PM

Semifighter18

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According to Tire Rack, you can put a 255 up front and a 325 out back.

Apr 5, 2024 | 01:24 PM

Street_Carver

Burning Brakes

Joined: Mar 2022

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From: West Palm Beach, FL

255/325 is the max width according to Michelin's tire sizing guide for PS4S and Cup 2's. I spent months deciding on factory size or up sizing.

I went with factory size due to it being a daily and wanting to keep the run flats(3 nails so far) and with the paragon spacers the car has enough poke. I have a non Z51 car but a concern with a Z51 car is PTM and the ELSD are calibrated specifically for the factory size tire and compound, although going non run flat or Cup 2's or any other track day tire run into the same issue.

What tire are you looking to run?

Apr 9, 2024 | 02:26 PM

progtp

Burning Brakes

Joined: Dec 2008

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From: TORONTO

I'm surprised they say you can go with a 325 on a stock 11" rear wheel. I thought a 305 was the max?

I'm running a 325 on a 12" wheel.

Apr 9, 2024 | 05:42 PM

ArizonaZ06

Melting Slicks

Joined: Aug 2000

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From: Early 2020 Z51 Coupe, Original Owner, Ahwatukee Foothills, AZ

Quote:

Originally Posted by progtp

I'm surprised they say you can go with a 325 on a stock 11" rear wheel. I thought a 305 was the max?

I'm running a 325 on a 12" wheel.

2 sizes wider than stock 11", not sure about that one.

I have 325's on my 11.5" and 315's on my other set of 11.5".

Apr 9, 2024 | 09:08 PM

gtpvette

Melting Slicks

Joined: May 2005

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From: Key Largo Florida

Quote:

Originally Posted by progtp

I'm surprised they say you can go with a 325 on a stock 11" rear wheel. I thought a 305 was the max?

I'm running a 325 on a 12" wheel.

As am I. 275 on a 9.5 up front.

Apr 9, 2024 | 09:09 PM

Semifighter18

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Quote:

Originally Posted by progtp

I'm surprised they say you can go with a 325 on a stock 11" rear wheel. I thought a 305 was the max?

I'm running a 325 on a 12" wheel.

If you go to Tire Rack, when you select a tire you can go to the "SPECS" tab and it will tell you the range of wheel widths that the tire will fit on. 325s will fit on 11" wheels. You can put 345s on a 12" wheel. I did it on my ZL1 1LE.